Map01 is a simplistic copy'n'paste tech dungeon; it's not bad to play, but feels very very simple, like part of one of the early N64 Doom levels. About thirty mostly weak baddies. Map02 is a similar thing, but it's a dungeon. Map03 is a shitty pile of crap with some crushers and a leaping puzzle; 11 baddies. Map04 is a trivial boss battle (a Baron of Hell). Overall I was expecting these maps to get better, but they actually get worse.